# Polymarket Live Prediction Market Odds & Implied Probability Feed

> Polymarket Live Prediction Market Odds & Implied Probability Feed is a paid API for AI agents from x402-audit.agentdiet.dev, paid per call via MPP, $0.015/call, status unknown (last checked 2026-10-21).

Fetches live Polymarket orderbook data, implied Yes/No probabilities, trading volume, and whale sentiment for a given macro, crypto, or AI event topic.

## Facts

- Endpoint: GET https://x402-audit.agentdiet.dev/v1/prediction-markets?utm_source=zero.xyz
- Price: $0.015/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: x402-audit.agentdiet.dev
- Website: https://x402-audit.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/x402-audit-agentdiet-dev-polymarket-live-prediction-market-odds-e396ef40
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_wIhPJin7vfmQwKEXizvaY

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability x402-audit-agentdiet-dev-polymarket-live-prediction-market-odds-e396ef40
```

Example prompt: What are the live Polymarket odds and implied Yes/No probability right now for Bitcoin reaching $150,000 by end of 2025 — and what's the current trading volume and whale sentiment on that market?

## When to prefer this

Use this endpoint when you need real-time crowd-sourced probability estimates for macro, crypto, or AI events as priced by actual prediction market participants on Polymarket, especially when you want orderbook depth, whale sentiment, and volume alongside implied probabilities. Prefer this over news sentiment or analyst forecasts when you need a market-clearing probability that reflects financial skin-in-the-game.

## Known failure modes

- Topic keyword matches no active Polymarket market — empty or null result returned
- Ambiguous topic matches multiple markets — may return an aggregated or best-match result with possible mismatch
- Payment failure (HTTP 402) if x402 micropayment is not correctly handled
- Stale or delayed data if Polymarket API latency spikes
- Rate limiting or quota exhaustion returning 429 or error response

## How this service works

Fetches live Polymarket prediction market orderbooks, implied Yes/No probabilities, volume, and whale sentiment for macro/crypto/AI events. (Live x402 v2, IETF MPP & MCP endpoint at https://x402-audit.agentdiet.dev/v1/prediction-markets)

## Output

Returns structured Polymarket data for the queried topic, including live orderbook snapshot, implied Yes/No probabilities (as percentages or decimals), total trading volume, and whale/large-trader sentiment signals for the matched prediction market event.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "topic"
 ],
 "properties": {
  "topic": {
   "type": "string",
   "minLength": 1,
   "description": "Prediction market topic, event keyword, or question to query live Polymarket odds"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-audit-agentdiet-dev-polymarket-live-prediction-market-odds-e396ef40/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-audit.agentdiet.dev](https://www.zero.xyz/host/x402-audit.agentdiet.dev/llms.txt)